Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * Wrapper functions for accessing the file_struct fd array.
3 */
4
5#ifndef __LINUX_FILE_H
6#define __LINUX_FILE_H
7
8#include <linux/compiler.h>
9#include <linux/types.h>
10#include <linux/posix_types.h>
11
12struct file;
13
14extern void __fput(struct file *);
15extern void fput(struct file *);
16extern void drop_file_write_access(struct file *file);
17
18struct file_operations;
19struct vfsmount;
20struct dentry;
21struct path;
22extern struct file *alloc_file(struct path *, fmode_t mode,
23 const struct file_operations *fop);
24
25static inline void fput_light(struct file *file, int fput_needed)
26{
27 if (unlikely(fput_needed))
28 fput(file);
29}
30
31extern struct file *fget(unsigned int fd);
32extern struct file *fget_light(unsigned int fd, int *fput_needed);
33extern void set_close_on_exec(unsigned int fd, int flag);
34extern void put_filp(struct file *);
35extern int alloc_fd(unsigned start, unsigned flags);
36extern int get_unused_fd(void);
37#define get_unused_fd_flags(flags) alloc_fd(0, (flags))
38extern void put_unused_fd(unsigned int fd);
39
40extern void fd_install(unsigned int fd, struct file *file);
41
42#endif /* __LINUX_FILE_H */